HIGHVulnerability
Verified
Global

CISA KEV: Zyxel GS1900 Series Switches — Zyxel GS1900 Series Switches Stack-Based Buffer Overflow Vulnerability

·Source: CISA KEV

Updated:

Executive Summary

Zyxel GS1900 series switches contain a stack-based buffer overflow vulnerability in the CGI program which could allow a LAN-based, unauthenticated attacker to exploit the flaw and potentially execute OS commands via a crafted HTTP request.

Analysis

Zyxel GS1900 series switches contain a stack-based buffer overflow vulnerability in the CGI program which could allow a LAN-based, unauthenticated attacker to exploit the flaw and potentially execute OS commands via a crafted HTTP request. Added to CISA Known Exploited Vulnerabilities catalog on 2026-09-21. Remediation due: 2026-09-24.

Indicators of Compromise (1)

CVE (1)
CVE-2026-7273
NVDMITRE CVE
Source Attribution

Originally published by CISA KEV on Sep 21, 2026. Verified by: CISA.

Related Threats

CRITICALVulnerability

GitLab Patches Critical 9.9 AI Gateway Flaw Allowing Command Execution on Self-Hosted Servers

A critical flaw in GitLab's AI Gateway could let a logged-in user with Duo Agent Platform access run commands on the gateway under certain conditions, GitLab said in an advisory. The gateway is the service that connects a GitLab instance to AI models, and only organizations that host their own gateway need to act. The flaw is fixed in gateway versions 19.2.4, 19.3.2, and 19.4.1. The flaw

The Hacker News
CRITICALVulnerability

Dell CSM Flaws Enable Unauthenticated Admin Access and Root on Kubernetes Nodes

Dell has released security updates to address multiple critical security flaws in Dell Container Storage Modules (CSM) that could be exploited by bad actors to take over susceptible systems. The vulnerabilities are listed below - CVE-2026-63688 (CVSS score: 10.0) - A missing authentication for critical function vulnerability in the csm-authorization-storage gRPC server that an

CVE-2026-63688
The Hacker News
MEDIUMVulnerability

SWIFT Banking & Government Middleware Enables RCE

Patch middleware vulnerabilities now to avoid hardware-based MFA exploits in ultra-sensitive environments.

Dark Reading